1. Harmonisation Working Group
HWG Meeting,
Tuesday 12 October, 2010,
NIAUR Office,
Belfast
12 Oct, 2010 1

2. HWG Agenda Minutes from Previous HWG Meeting 13.00 – 13:05
NIE Project Update
13.05 – 13.15
HRDS Work Programme Update
13.15 – 13.55
Confirm Classification of Requests
Review / Approve DR1024 (Global Aggregation)
Review / Approve 15 ES-sourced DRs
Review / Approve DR0175 (WP18 – Token Meters)
Next Steps
AOB
13.55 – 14.00
12 Oct, 2010 2

3. Minutes of Previous HWG Meeting
Minutes from HWG meeting – 26th Aug 2010
For Approval
12 Oct, 2010 3

4. NIE Project Update…
12 Oct, 2010 4

5. Confirm HRDS Classification of Harmonisation Requests
Classification of Change Requests (7th Sept workshop and follow-on work)
All 40 currently active requests are now classified as:
Harmonisation Impacting = 33
Approved = 8
Approved but recently re-versioned = 6
New = 19 (15 from NI ES Requirements Review)
ROI-Specific = 7
Approved = 4
New = 3
HRDS Active Market Request List
Published on 6 October
At today’s Meeting
Confirm all Harmonisation Classifications are correct and, therefore, HWG has jurisdiction over these Requests
12 Oct, 2010 5

6. DR1024 – Global Aggregation V1.0
CER request for Retail Market implementation of recent SEM Committee decision on Global Aggregation (Option E)
Requested implementation date for ROI to coincide with next Wholesale Schema release (April 2011)
NI expect to implement Global Aggregation at or around the Enduring Solution go-live
At today’s Meeting
For Approval
12 Oct, 2010 6

7. DR1024 - Global Aggregation
Currently all Independent Suppliers settled based on the aggregation of metered quantities
PES – settled by difference through respective Error Supplier Unit
All of the financial cost of the Residual Error Volume on the registrants of the Error Supplier Units.
Global Aggregation – equal treatment in relation to the Error Supply Unit for all Supplier Units in the SEM
The approved Option allocate the financial cost of the Residual Error Volume to all Supplier Units, proportionally to the amount of non-Interval meter volume as calculated for the relevant Supplier.
12 Oct, 2010 7

8. Global Aggregation: Option E – Enhanced Dual Factor Smear
Key features in the proposal include :
Facilitates Error Supplier Units in either Jurisdiction, which allows the Modification to be implemented separately in each Jurisdiction thus providing both an All Island solution and an interim solution for RoI jurisdiction without the need for additional work.
Calculation of the Loss-Adjusted Residual Error Volume
A new annual Residual Meter Volume Interval Proportion will be determined by the Regulatory Authorities
A new Non Interval Energy Proportion for each Supplier Unit in each Trading Period, representing the proportion of Supplier Unit volume that relates to Non-Interval Metering will be created.
Addition of the Non Interval Energy Proportion to the MDP message submission (currently including meter data).
12 Oct, 2010 8

9. Global Aggregation: Impact on Retail Market
590, MM
MRSO will provide a daily NQH factor to SEMO for each supplier unit in line with and based on the current data aggregation procedures.
The proposed method for providing this factor would be to use the current 590 message that is sent to SEMO as part of each data aggregation run.
For the NPED 590 MM the factor will be based on the gross NQH consumption per unit and per 30 minute interval divided by the sum of the gross NQH demand + gross QH demand per unit per 30 minute interval.
For the NPEG 590 MM the factor value will always be zero.
This factor would also be displayed on the 596 and 597 messages.
This will result in an additional field on the 590, 596 and 597 messages in order to carry the NQH factor.
12 Oct, 2010 9

10. Global Aggregation: Implementation
CER has sought to have this DR progressed for implementation in the Retail Market in tandem with the necessary changes in the Wholesale Market and delivered simultaneously with the next Wholesale Market Schema Release (April 2011) in order to provide an interim aggregation solution to facilitate deregulation of ESB CS tariffs.
At today’s meeting
For approval
12 Oct, 2010 10

11. Review of 15 DRs arising from Requirements Review
ES Requirements Review
15 DRs have emerged to accommodate the output from this review
Broad thrust of changes is closer alignment by NI with ROI market design
All changes will need to be approved by HWG on 18 Nov in order to meet the close of ES Design Phase
At today’s Meeting
Review and approve all 15 DRs to MCRs
12 Oct, 2010 11

12. DR0175 – WP 18 (Token Meters) V3.0 DR0175 – WP18 (Token Meters)
Re-versioned to reflect outputs from recent Market Workshops on Token Meters / Budget Controllers
At today’s Meeting
For Approval
12 Oct, 2010 12

13. HRDS Work Programme – Outlook
Workshop on 26th October (Dublin, RMDS Offices)
HWG extraordinary meeting to accommodate workload arising from 15 DRs
IGG Prioritisation Workshop for ROI-Specific Requests
12 Oct, 2010 13

14. Next Steps Proposed Diary dates for HWG meetings in 2010:
(Extraordinary)
Proposed dates are on Calendar of Events on RMDS website
12 Oct, 2010 14

15. HWG Meeting
AOB
12 Oct, 2010 15

16. HWG Meeting
Thank You
12 Oct, 2010 16